Emergency! S06E05 - Fair Fight

The firemen walk in to a guest–a droopy-eyed dog–and he becomes the new mascot named "Henry;" he replaces Boot, who had died. The firefighters respond to an industrial fire and check a Top Secret room for victims–and a lot of questions from the employees about the contents of the room. "Therapeutic arguing" between a married couple leads to escalating violence and worsening injuries to both parties, and John is trapped in a cave-in trying to rescue two injured workers.